Animal proteins include dairy products, red meat, poultry seafood, pork and eggs. These sources are complete proteins, meaning that they contain all of the essential amino acids your body needs. Choose red meats low in fat such as top loin, top sirloin, bottom round, round tip roasts and round steaks.
home / study / science / chemistry / chemistry questions and answers / An Alkane Which Can Exhibit Optical Activity Is: Neopentane 3-methylpentane J-methyl Thane ... Question: An alkane which can exhibit optical activity is: neopentane 3-methylpentane J-methyl thane 2.3-... Show transcribed image text An alkane which can exhibit optical activity is: neopentane 3-methylpentane J-methyl thane 2.3-dimethylbutane How many stereoisomers are possible for the following molecule?
After this time we see much better in the dark, but we have very little colour vision. This is known as scotopic vision. The active substance in the rods is rhodopsin. A single photon can be absorbed by a single molecule that changes shape and chemically triggers a signal that is transmitted to the optic nerve. Vitamin A aldehyde also plays an essential role as a light-absorbing pigment. A symptom of vitamin A deficiency is night blindness because of the failure of scotopic vision.